TESORO LOBO SCHEMATICS

[amtech2005]

TESORO LOBO SCHEMATICS

Maxbiri , You are 100 % correct !!! I just posted this so everyone without the "sprint software" can see the pcb circuit-board !!! SMT is the last resort , "Through-hole is the best" !!! , especially for my Blind Eyes. Have a Great Day Maxbiri ........Eugene

[maxbiri]

Hi All
I hate smd only because i cant find theme in small quantity, i need buy at least 1000 pcs for each value, but smd will be very helpfull, you dont need hundreds of holes!
I started redesigning lobo circuit from l.W. schematic but i would like put same improvements.
With eldorado, silver and golden sometime i have a selfoscillation, in the field, at low F, maybe around 0.5 Hz or less.I need cut off wait a little and then restart.
I presume, but i'm not sure, it is a auto oscillations starting from audiostage.
I plan put decoupling capacitors around each ic and increase the 220 mf and resistor in the power input stage.
There are others improvements that i can incorporate?


Bye Max

[erolunall]

Hello

http://md4u.ru/forum/viewtopic.php?t...=asc&start=125

Lobo sprint layout pcb

Regards
Erol

[willy]

Had an original Lobo a couple of years back and was communicating with Reg; he said that it could be modified to become significantly more sensitive. He had the instructions floating around somewhere but never got around to finding them and I sold the Lobo. Maybe someone might want to contact him for this info. ..Willy.

[whiskey]

From Russian site: